Controlled coalescence with local front reconstruction method

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Abstract

The physics of droplet collisions involves a wide range of length scales. This poses a difficulty to accurately simulate such flows with traditional fixed grid methods due to their inability to resolve all scales with affordable number of computational grid cells. A solution is to couple a fixed grid method with simplified sub grid models that account for microscale effects. In this paper, we incorporate such framework in the Local Front Reconstruction Method (Shin et al., 2011). To validate the new method, simulations of (near) head on collision of two equal tetradecane droplets are carried out at different Weber numbers corresponding to different collision regimes. The results show a better agreement with experimental data compared to other fixed grid methods like Front Tracking (Pan et al., 2008) and Coupled Level Set and Volume of Fluid (CLSVOF) (Kwakkel et al., 2013), especially at high impact velocities.
Original languageEnglish
Title of host publicationProgress in Applied CFD – CFD2017
Subtitle of host publicationProceedings of the 12th International Conference on Computational Fluid Dynamics, 30 May - 1 June 2017, Trondheim, Norway
EditorsJ.E. Olsen, S.T. Johansen
Place of PublicationOslo
PublisherSINTEF Academic Press
Pages373-380
Number of pages8
ISBN (Electronic)978-82-536-1544-8
Publication statusPublished - 12 Jun 2017
Event12th International Conference on Computational Fluid Dynamics in the Oil & Gas, Metallurgical and Process Industries (CFD 2017)
- Scandic Nidelven Hotel, Trondheim, Norway
Duration: 30 May 20171 Jun 2017
Conference number: 12
http://www.sintef.no/projectweb/cfd-2017/

Conference

Conference12th International Conference on Computational Fluid Dynamics in the Oil & Gas, Metallurgical and Process Industries (CFD 2017)
Abbreviated titleCFD 2017
CountryNorway
CityTrondheim
Period30/05/171/06/17
Internet address

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Coalescence
Physics
Fluids

Keywords

  • Numerical Simulation, Multiphase flows, Front Tracking, LFRM, coalescence, break-up, droplet collision.

Cite this

Rajkotwala, A. H., Mirsandi, H., Peters, E. A. J. F., Baltussen, M. W., van der Geld, C. W. M., Kuerten, J. G. M., & Kuipers, J. A. M. (2017). Controlled coalescence with local front reconstruction method. In J. E. Olsen, & S. T. Johansen (Eds.), Progress in Applied CFD – CFD2017: Proceedings of the 12th International Conference on Computational Fluid Dynamics, 30 May - 1 June 2017, Trondheim, Norway (pp. 373-380). Oslo: SINTEF Academic Press.
Rajkotwala, A.H. ; Mirsandi, H. ; Peters, E.A.J.F. ; Baltussen, M.W. ; van der Geld, C.W.M. ; Kuerten, J.G.M. ; Kuipers, J.A.M. / Controlled coalescence with local front reconstruction method. Progress in Applied CFD – CFD2017: Proceedings of the 12th International Conference on Computational Fluid Dynamics, 30 May - 1 June 2017, Trondheim, Norway. editor / J.E. Olsen ; S.T. Johansen. Oslo : SINTEF Academic Press, 2017. pp. 373-380
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title = "Controlled coalescence with local front reconstruction method",
abstract = "The physics of droplet collisions involves a wide range of length scales. This poses a difficulty to accurately simulate such flows with traditional fixed grid methods due to their inability to resolve all scales with affordable number of computational grid cells. A solution is to couple a fixed grid method with simplified sub grid models that account for microscale effects. In this paper, we incorporate such framework in the Local Front Reconstruction Method (Shin et al., 2011). To validate the new method, simulations of (near) head on collision of two equal tetradecane droplets are carried out at different Weber numbers corresponding to different collision regimes. The results show a better agreement with experimental data compared to other fixed grid methods like Front Tracking (Pan et al., 2008) and Coupled Level Set and Volume of Fluid (CLSVOF) (Kwakkel et al., 2013), especially at high impact velocities.",
keywords = "Numerical Simulation, Multiphase flows, Front Tracking, LFRM, coalescence, break-up, droplet collision.",
author = "A.H. Rajkotwala and H. Mirsandi and E.A.J.F. Peters and M.W. Baltussen and {van der Geld}, C.W.M. and J.G.M. Kuerten and J.A.M. Kuipers",
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Rajkotwala, AH, Mirsandi, H, Peters, EAJF, Baltussen, MW, van der Geld, CWM, Kuerten, JGM & Kuipers, JAM 2017, Controlled coalescence with local front reconstruction method. in JE Olsen & ST Johansen (eds), Progress in Applied CFD – CFD2017: Proceedings of the 12th International Conference on Computational Fluid Dynamics, 30 May - 1 June 2017, Trondheim, Norway. SINTEF Academic Press, Oslo, pp. 373-380, 12th International Conference on Computational Fluid Dynamics in the Oil & Gas, Metallurgical and Process Industries (CFD 2017)
, Trondheim, Norway, 30/05/17.

Controlled coalescence with local front reconstruction method. / Rajkotwala, A.H.; Mirsandi, H.; Peters, E.A.J.F.; Baltussen, M.W.; van der Geld, C.W.M.; Kuerten, J.G.M.; Kuipers, J.A.M.

Progress in Applied CFD – CFD2017: Proceedings of the 12th International Conference on Computational Fluid Dynamics, 30 May - 1 June 2017, Trondheim, Norway. ed. / J.E. Olsen; S.T. Johansen. Oslo : SINTEF Academic Press, 2017. p. 373-380.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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T1 - Controlled coalescence with local front reconstruction method

AU - Rajkotwala, A.H.

AU - Mirsandi, H.

AU - Peters, E.A.J.F.

AU - Baltussen, M.W.

AU - van der Geld, C.W.M.

AU - Kuerten, J.G.M.

AU - Kuipers, J.A.M.

PY - 2017/6/12

Y1 - 2017/6/12

N2 - The physics of droplet collisions involves a wide range of length scales. This poses a difficulty to accurately simulate such flows with traditional fixed grid methods due to their inability to resolve all scales with affordable number of computational grid cells. A solution is to couple a fixed grid method with simplified sub grid models that account for microscale effects. In this paper, we incorporate such framework in the Local Front Reconstruction Method (Shin et al., 2011). To validate the new method, simulations of (near) head on collision of two equal tetradecane droplets are carried out at different Weber numbers corresponding to different collision regimes. The results show a better agreement with experimental data compared to other fixed grid methods like Front Tracking (Pan et al., 2008) and Coupled Level Set and Volume of Fluid (CLSVOF) (Kwakkel et al., 2013), especially at high impact velocities.

AB - The physics of droplet collisions involves a wide range of length scales. This poses a difficulty to accurately simulate such flows with traditional fixed grid methods due to their inability to resolve all scales with affordable number of computational grid cells. A solution is to couple a fixed grid method with simplified sub grid models that account for microscale effects. In this paper, we incorporate such framework in the Local Front Reconstruction Method (Shin et al., 2011). To validate the new method, simulations of (near) head on collision of two equal tetradecane droplets are carried out at different Weber numbers corresponding to different collision regimes. The results show a better agreement with experimental data compared to other fixed grid methods like Front Tracking (Pan et al., 2008) and Coupled Level Set and Volume of Fluid (CLSVOF) (Kwakkel et al., 2013), especially at high impact velocities.

KW - Numerical Simulation, Multiphase flows, Front Tracking, LFRM, coalescence, break-up, droplet collision.

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Rajkotwala AH, Mirsandi H, Peters EAJF, Baltussen MW, van der Geld CWM, Kuerten JGM et al. Controlled coalescence with local front reconstruction method. In Olsen JE, Johansen ST, editors, Progress in Applied CFD – CFD2017: Proceedings of the 12th International Conference on Computational Fluid Dynamics, 30 May - 1 June 2017, Trondheim, Norway. Oslo: SINTEF Academic Press. 2017. p. 373-380